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Helpful Reply25HP Intek V-Twin OHV Top No Load RPM?

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Steverino
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2025/02/08 08:10:29 (permalink)
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25HP Intek V-Twin OHV Top No Load RPM?

Model 445777 0264-E1 Code 051121YG
 
Engine's on a JD 155C tractor.
 
I've got the repair manual for this engine but not the Microfiche MS-6225 or Sales Manual MS-4052. Anyone know what the Top NL RPM should be? My "guess" would be around 3450-3550 RPM. (Not great at guessing)
 
Thanks in advance!
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    SRTsFZ6
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    Re: 25HP Intek V-Twin OHV Top No Load RPM? 2025/02/08 17:19:40 (permalink)
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    Most engines are rated for 3,600.   
     
    Some mower engines are set for 3,400 per the US gov. 
    As you may hit and launch a rock while mowing
    that 200 RPM will save someone's life..  No kidding... 
     
    .

    Scott
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    Steverino
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    Re: 25HP Intek V-Twin OHV Top No Load RPM? 2025/02/09 14:56:52 (permalink)
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    Thank you for the info Scott!  Happened across another thread here a few weeks ago  that stated 3,450 - 3,550.  Will stick to the lower end.
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    SRTsFZ6
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    Re: 25HP Intek V-Twin OHV Top No Load RPM? 2025/02/09 15:38:31 (permalink)
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    An engine that big, agreed, I'd stick with the lower end of spec's.
     
    Being on a tractor, you'll likely NOT just let it run, no load, at WOT. 
     
    If you need more pulling power, you can always bump it up..
     
    Have fun!
     
    . 
     
     
    .
    post edited by SRTsFZ6 - 2025/02/09 15:40:54

    Scott
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    Steverino
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    Re: 25HP Intek V-Twin OHV Top No Load RPM? 2025/02/18 11:54:31 (permalink) ☄ Helpfulby SRTsFZ6 2025/02/18 18:18:57
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    It's amazing what one might find if you dig a little deeper.  Going over the parts list (again) for the 445777-0264-E1  Intek 25hp V-Twin I scrolled to page 26 where the replacement engine and short block is listed.
     
    Briggs actually added the spec for Top No-Load Speed: 3,300
     
    Regardless, all the replies were much appreciated and I'm still planning on "having fun"!
     
     
     
     
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